The mobile phone speaker cover can not only protect the speaker, but also have an influence on the electroacoustic characteristics.

手机扬声器的面盖不仅起保护扬声器的作用，而且会对电声性能产生影响。

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Our company specializes in producing all kinds of precision metal parts injection Speaker: Trough frame, cover, Washers, Copper collar.

本公司专业生产各种精密五金注塑喇叭配件：盆架、护盖、华司、铜环。

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Thanks in part to ideas born at dB Drag events, the acoustic power of car stereo speakers has increased tenfold in the last ten years, from a maximum of 500 watts per square meter to 5, 000. (A loudspeaker at a rock concert puts out 2, 500 to 3, 000 watts.) Pioneer learned from dB Dragsters to cover speaker coils with ceramics to dissipate heat.

FORBES: Magazine Article

To the left of this branding are some tiny drilled holes that cover the speaker.

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The Gamer may be built for fun, but it's all business on the outside -- meaning it avoids the siren call to cover itself in loud colors, over-designed speaker grills and "hardcore" accents.

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